The original mission was to construct a shock-absorber ( screamer) out of components found on an average rack. Furthermore, the rig had to be "reusable". This has an advantage over mission-specific, shop bought shock-absorbers, which are "use once". Although some manufacturers offer a "return for a re-stitch" service, this is not really viable mid-route or if you are based in the middle of nowhere. Following on from a suggestion on ukclimbing.com from Sandy Wilson, I spent £1.49 for a packet of rubber bands from Partners, to build myself a stretchy quickdraw. 02 September 2007 - Latest field test results Fig. 1 You will need: A packet of 100mm x 6mm rubber bands. I bought mine from Partners for £1.49. Two karabiners. A roll of electrical tape ( Not pictured). One 60cm sling as the back up. Note : Click on the pictures for an enlargement ( 1-2mb) Fig. 2 ...